In a lavish outdoor ceremony at the Beverly Hills Hotel, Tweed walked down the aisle in an ivory gown from Priscilla of Boston, swapping vows with Simmons as their two children, Nick, 22, and Sophie, 19, looked on.

The invite comes from the couple’s kids, Sophie and Nicholas, who ask “classy cocktail attire” be worn, while acknowledging “we know some Rockster attire will be worn.” Check out Simmons’s dramatic proposal, below.